No problem, we've got 1139 and 4766 to multiply
1139 × 4766 = 4766 × (1139)
+ 4766 × 9 what gives us 42894
+ 4766 × 30 yielding 142980
+ 4766 × 100 resulting in 476600
+ 4766 × 1000 that is equal 4766000

= 5428474
